| Sg. Indef. | ilskór |
| Sg. Def. | ilskórinn |
| Pl. Indef. | ilskór |
| Pl. Def. | ilskórnir |
| Sg. Indef. | ilskós |
| Sg. Def. | ilskósins |
| Pl. Indef. | ilskóa |
| Pl. Def. | ilskónna |
| Sg. Indef. | ilskó |
| Sg. Def. | ilskónum |
| Pl. Indef. | ilskóm |
| Pl. Def. | ilskónum |
| Sg. Indef. | ilskó |
| Sg. Def. | ilskóinn |
| Pl. Indef. | ilskó |
| Pl. Def. | ilskóna |